Tides Today & Tomorrow in Friday Harbor, WA

TIDE TIMES for Thursday, July 23, 2026
The tide is currently rising in Friday Harbor, WA.
Next low tide (tomorrow) : 8:18 am (-0.4 ft)
Next high tide : in 12h 54m at 11:25 pm (7.3 ft)
Sunset today : 9:01 pm
Sunrise tomorrow : 5:35 am
Moon phase : Waxing Gibbous (72% illuminated)
Tide Station Location : Station #9449880
Common Questions About Tides

Friday Harbor, WA Tides - Sep 1981

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Tue7:076.08:077.11:283.31:111.66:297:54Waxing Crescent1Tue
2Wed8:055.88:276.92:082.71:492.46:317:52Waxing Crescent2Wed
3Thu9:105.68:466.82:492.32:283.36:327:50Waxing Crescent3Thu
4Fri10:285.69:086.63:331.93:124.26:337:48First Quarter4Fri
5Sat12:015.74:201.64:065.06:357:45First Quarter5Sat
6Sun1:426.05:101.35:235.56:367:43First Quarter6Sun
7Mon3:006.46:031.17:175.86:387:41First Quarter7Mon
8Tue3:506.76:580.98:475.86:397:39Waxing Gibbous8Tue
9Wed4:277.07:530.69:305.76:407:37Waxing Gibbous9Wed
10Thu12:486.24:587.18:430.39:585.46:427:35Waxing Gibbous10Thu
11Fri1:556.35:247.29:270.110:225.06:437:33Waxing Gibbous11Fri
12Sat2:596.45:497.210:080.010:514.46:447:31Full Moon12Sat
13Sun4:006.56:137.210:480.111:263.76:467:29Full Moon13Sun
14Mon5:016.66:377.211:290.56:477:27Full Moon14Mon
15Tue6:046.67:017.312:072.912:101.16:497:25Full Moon15Tue
16Wed7:096.67:257.312:502.012:532.06:507:22Waning Gibbous16Wed
17Thu8:176.57:527.31:371.21:383.06:517:20Waning Gibbous17Thu
18Fri9:336.58:207.32:270.52:274.06:537:18Waning Gibbous18Fri
19Sat11:006.68:537.13:210.13:255.06:547:16Third Quarter19Sat
20Sun12:326.84:20-0.24:425.76:567:14Third Quarter20Sun
21Mon1:577.15:23-0.36:286.06:577:12Third Quarter21Mon
22Tue3:017.46:29-0.28:145.86:597:10Waning Crescent22Tue
23Wed3:507.67:35-0.19:185.37:007:08Waning Crescent23Wed
24Thu1:126.14:307.68:360.110:024.77:017:06Waning Crescent24Thu
25Fri2:406.15:047.59:280.410:394.07:037:03Waning Crescent25Fri
26Sat3:516.15:327.410:140.811:123.47:047:01New Moon26Sat
27Sun4:526.25:577.210:551.411:432.87:066:59New Moon27Sun
28Mon5:486.36:177.011:332.07:076:57New Moon28Mon
29Tue6:416.46:336.812:142.212:112.77:086:55New Moon29Tue
30Wed7:326.56:496.712:451.612:503.47:106:53Waxing Crescent30Wed
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (9449880)

Common Questions About Friday Harbor, WA Tides

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What time does the tide turn (slack tide) in Friday Harbor, WA today?

Slack tide in Friday Harbor, WA is approximately 3:51 am — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in Friday Harbor, WA?

Friday Harbor, WA is currently in a transitional phase. Tonight's moon is 72% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are shifting between spring and neap.

What datum are Friday Harbor, WA tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for Friday Harbor, WA?

Tide predictions for Friday Harbor, WA come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for Friday Harbor, WA?

Tide data for Friday Harbor, WA is sourced from NOAA Station #9449880. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=9449880.

What is the moon phase in Friday Harbor, WA tonight?

Tonight the moon over Friday Harbor, WA is Waxing Gibbous (72% illuminated). This places Friday Harbor, WA in a transitional tide cycle, so tidal ranges are shifting between spring and neap this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA